US 12,339,382 B2
Positioning method, apparatus, and system
Mengting Liu, Beijing (CN); Su Huang, Shanghai (CN); and Junren Chang, Beijing (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Jun. 29, 2022, as Appl. No. 17/853,151.
Application 17/853,151 is a continuation of application No. PCT/CN2019/130981, filed on Dec. 31, 2019.
Prior Publication US 2022/0326334 A1, Oct. 13, 2022
Int. Cl. G01S 5/00 (2006.01); G01S 5/02 (2010.01); H04L 5/00 (2006.01); H04W 64/00 (2009.01)
CPC G01S 5/0063 (2013.01) [G01S 5/0236 (2013.01); H04L 5/0051 (2013.01); H04W 64/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of ascertaining, by a terminal device or a chip thereof, a device position of the terminal device, the method comprising:
obtaining a plurality of assistance data, wherein each of the plurality of assistance data comprises at least one group of mapping relationships, each of the at least one group of mapping relationships corresponds to a preset angle, and each group of mapping relationships comprises a mapping relationship between each of one or more positioning reference signal (PRS) resource identifiers and power information corresponding to each PRS resource identifier;
determining power information corresponding to one or more PRS resource identifiers which correspond to each of a plurality of to-be-measured angles; and
ascertaining a position of the terminal device based on the plurality of assistance data and the power information corresponding to the one or more PRS resource identifiers at each of the plurality of to-be-measured angles.